Matter near to the Endpoint of the Electroweak Phase Transition
نویسنده
چکیده
Wave functions and the screening mass spectrum in the 3D SU(2)–Higgs model near to the phase transition line below the endpoint and in the crossover region are calculated. In the crossover region the changing spectrum versus temperature is examined showing the aftermath of the phase transition at lower Higgs mass. Large sets of operators with various extensions are used allowing to identify wave functions in position space.
منابع مشابه
نقض CP و گذار فاز الکتروضعیف در مدل دو هیگزی
In this paper, an analytic treatment of electroweak phase transition is proposed within the two-Higgs doublet model. This phase transition occurs in one stage and is strongly first order. Therefore, it can be applied to the electroweak baryogenesis scenario, whereas the standard model cannot provide this condition considering the experimental data. Also, we study CP violation which is one of th...
متن کاملHot electroweak matter near to the endpoint of the phase transition
The interface tension α characterises the strength of a first order phase transition. We apply the tunnelling correlation method [3] to determine its value for a Higgs mass of about 70 GeV by studying the inverse correlation length mlat = mgapa (given by the correlation function of the Higgs operator ρx along z) in an elongated lattice L ×Lz as function of the transverse area aL. The scaling of...
متن کاملElectroweak Baryogenesis and New TeV Fermions
New fermions, strongly coupled to the Standard Model Higgs boson, provide a well motivated extension of the Standard Model (SM). In this work we show that, once new physics at heavier scales is added to stabilize the Higgs potential, such an extension of the SM can strengthen the first order electroweak phase transition and make the electroweak baryogenesis mechanism feasible. We propose a SM e...
متن کاملThe Properties of the Critical Point in Electroweak Theory
We study the properties of the electroweak theory in the vicinity of the critical point — the endpoint of the first order phase transition line that exists in a wide class of theories, including the Standard Model and a part of the parameter space of the Minimal Supersymmetric Standard Model. We find that the critical point belongs to the 3d Ising universality class. The endpoint in the Standar...
متن کاملThe endpoint of the first-order phase transition of the SU(2) gauge-Higgs model on a 4-dimensional isotropic lattice
We study the first-order finite-temperature electroweak phase transition of the SU(2) gauge-Higgs model defined on a 4-dimensional isotropic lattice with temporal extension Nt = 2. Finite-size scaling study of Lee-Yang zeros yields the value of the Higgs self coupling of the endpoint at λc = 0.00116(16). An independent analysis of Binder cumulant gives a consistent value for the endpoint. Combi...
متن کامل